Improvement in machines for hulling and scouring grain



UNITED STATES PATENT OFFICE.

LEwis s. enrenEsrEn, or NEW wenn. Y.,.iss1eXon;To JemT J. TiLEE, or sAMEPLACE.

lMPRQVEMiENT iN MACHINES FUR HULLING AND SCOURlNG GRAW,

Specification forming part of Letters Patent No. 159,080, dated January26, LETS; :duplication tiled December 12, 1574.

To all. Iwhom it may concern:

lle it known that I, LEwis S. CmCnEsrEu, of the city and State oi NewYork, have invented and made an improvement in llulling and SeouringMachines, of whieh the following: is u specification:

This invention is for the purpose of removing" the hulls from wheat andother grain previous to its being' ground or otherwise prepared i'ormarket; and consists in peculiarlyeonstructed rubbing-hands, thatrevolve in asnitablo ease, in combina-tion with delleetors, and u trunkfor a suctieirblast to carry away the dust and hulls.

YTin., thedrawing, lfigure l is a` vertical seef tion oi' the hullinglapparatus. Fign shows the rubbingdiands separately in larger size; andFig'. 3 is aseetion at the line 1r r, repre, senting theserubbing-handsand illustrating 'ihei action on the-grain.

lhe rnbbingwhands a` It are composed 0f three or more Vshaped curvedbars. I have shown four extending out from a hub, and eaeh V-shapcd haris corrugated or roughened upon its outer and operative sin-linee, andit is generally eoncave, the end oi' the curved bar being' in advanceot' the conca-ve portion, the

object beine; to lessen the eenlrilueal actionV ot' the hands inconsequence ofthe ooneave surface tendiin,r to throw the grain towardthe center. Several of the hubs with the hands o, according to the sizeof the huller, are placed side by side. on each et' the shafts c d o,and rlnly secured by keys or otherwise to those shafts, re ipeetively.These shafts are in boxes upon a frame, f, and they are revolved bycompetent power in the direction of the arrows, and the shafts d and care preferably revolved faster than the shaftc. Below the hands a athere is a eoneave bottom, g, preferably made ot' wire cloth or similarmaterial, in concave sections, as shown, and these coin cave bottoms aresecured to a. frame, g', that is hinged at 7 to the frame f, so that itcan be swung downto allow for cleaning the grating. There is a cover, h,over the rubbers or hands,

with curved adjustable delleetors k, each oi' which is hinged at L', andraised or lowered by the rod3,m.'1dewilh holes for a sustaining pin.

The grain is introduced through the hopper l, and the quantity isregulated by the damper 4. The grain :ieeunnilates upon each o." thecurved bottoms f/, and the rubin-rs or hands pass through the grain. andihe surfaces bcing inclined toward eaeh ozher the grains are compressedand rubbed omA 'againsty the other as the hands pass through the muss,and a portion is, from time to time, thrown, by the centrifugal force,into the next section, to be, gigainoperated upon by the hands orrubbers, and so on. The dust and particles of hulls are drawn ot'tlby asuction applied to the trunk k.

I remark` that it is generally prelbrableto meisten the grain with waterbbl'ore hulline', because the hulls will be soll-oued and moruey easilyrubbed oli', and the grain will be lhs-s liable to be broken. '.lhegrain is eventually delivered by the spoilt (i, and the hulls and dustare drawn up into the irnnl. I." and conveved away. A separate wimmwermay be employed, il" necessary; and L remark that' the period ot' timein which the grain remnins` in the apparatus under treatment will depend.upon the position ot' the delleol'ors 1c and the speed ot' rotation ot'the hands or rubbers.

I claim as my inventionl. The. revolving hands or rubbers a a, incombination with the adjustable delleetors k and trunk 7c',substantially as set'forth.

2. The hands or rubbers made seetionally of a. V shape, and curvedforward ut their ends, und revolved in pairs within the grainreeeptaeleto loosen and separate the hulls by the rubbing moa ion specified.

Signed by me this 7th day qi December,

, LEWIS S. OHICHESTER. Witnesses:

(hns. H. SMITH, GEO. T. IrNenNEY.

